Gun with barrel-recoil having recuperator-spring.



PATENTED MAR. 17, 19031 0. LAUBER. REEL RECOIL HAVING REOUPERATQR SPR GUN WITH BA ING.

APPLICATION FILED JULY 28, 1902.

N0 MODEL.

o cylinder D l-TE Parser O'ETO LAUBER, cs ns ssuou'rsnsone, GERMANY, ASSIGNOR TO FRIED.

- users, or ssssn-ou-ri s-nusn, scanner.

one wire BARREL-RECUiL sesame 'eseoees aroe s esneo.

SPECIFICATION forming part of Letters Patent 1\lO. ?22,725, dated March 17, 1903. Application filed d'nly 28. 1902. Serial llo 117,348. (No model.)

To all whom it may concern: Be it known that I, OTTO Lesson, a subject of theEm peror of Germany, and a resident of 36 2 Holsterhausein, Essen onrthe-ltuhr, Ger- 5 many, have invented certain new and useful Improvements in Guns wiih-Barrel-Recoils Having Recuperator-Springs, of which the following is a specification.

This invention relates to guns with barrel- [0 recoil and recuperator-springs for returning the gun-barrel to the firing position, and has for its object to provide means for protecting the interior of the cradle against the entrance of dust and other foreign matter. in guns of this type as heretofore constructed the end of the cradle toward the breech end of the gun. (the rear end) is not closed. In consequence of this dust and dirt enter the eradle during travel, lodge between the coils of the recuRerator-spring, and seriously hinder the recoiland running-out movements of the gun-barrel in firing. The present invention avoids this difficulty by arranging a packing on the cradle or on the gun-barrel which encircles the part of the recoil-brake which moves with the gun in such a manner that the space betweenihis reciprocating part and the cradle is closed at least in the firing position of the gun-barrel.-

0 Three embodiments of this invention are shown in the acodmpanying drawings, in which- Figure 1 is an embodiment of the invention in. which the packing is arranged on the era 5 dle, those parts of the gun which come under discussion being shown partly in side elevation and partly in vertical section. Fig. 2 is a rear view of. Fig. 1. Fig. 3 is a section on the line 3 3 of Fig. 1 seen from above. Fig.

0 4 is another embodiment in'which the packing is likewise arranged on the cradle, and

Rig. 5 is a third embodiment of the invention in which the packing is arranged on the gunbarrel.

The gun-barrel A is mounted upon the eradle B in a well-known manner, which cradle incleses the fluid-pressure brake and the recuperator-spring O. The fluid-brake may be of any suitable known construction. The of the brake is connected with a E on the breech of the gun-barrel by horn Figs. 1 to t a packing means of a screw F, while the piston rod g of the brake-piston G is securely fatenedt0 the cradle through the medium of a cap II. The brake-cylinder D is surrounded by the recuperator-sprin g O, wliich abuts at its forward end against a shoulder J of the brake-cylinder D and at its rear end against a plate K, secured to the cradle. This late K joins the inner wall of the cradle in a dust-tight connection and encircles the brake-cylinder I) so as to allow the latter some play.

According to the embodiment shown in L is secured to the plate K, which packing encircles the brake cylinder in the form of a ring. In Figs. 1 to 3 this packing is shown with an l..-shaped section, while in Fig. 4 it is shown with a rectangular section and secured to the plate I K through the medium of a covering-plate M, lying parallel to said plate K, and suitable screws'passing through the plate M into the plate K.

According to the embodiment shown in Fig. 5 the packing L retains its L-shaped section, but is not attached to a part of the cradle, but to the horn E on the breech ofthe gun-barrel, being likewise secured in place, however, through the medium of a coveringplate M and suitable screws orv the like.

In the embodiment shown in Figs. 1 to 3 and also in that shown in Fig. 5 the packing L is constructed of elastic material and-encircles the brake-cylinder with play. When the gun-barrel is in its firing noF-i'tion, the annular face Z of the packing lies against the horn E of the gun-breech in the form shown in Figs. 1 to 3; but in the form shown in Fig. 5 it rests against the plate K. In the formshown in Fig. l the packing L consists of packing material and the dust-tight con nection is made by its impingement against the neriphery otthe brake-cylinder.

The operation of the several arrangements described is as follows: Since, on the one hand, the cradle B is connected through the medium oi the cap H with the rod of the brake-piston G, and, on the other hand, the brake-cylinder is connected to the gun-barrel through the screw. 1*, the brake-piston remains stationary during recoil and runningout movements of the barrehwh'ile the brakecylinder follows these movements. In the form shown in Fig. t when the gnzrberrei runs heel; after e shot the packing L slides upon the outer surface of the brake-cylinder and protects the interior of the cradle against dust and the like during the movements of the barrel, as well as when the barrel is in its firing position. In the forms shown in Figs. 1 to 3 and in Fig. 5 the interior of the cradle is protected only when the parts are in firing position. In the letter cases the packing L Works like a valve. As the packing in the two last-named cases is constructed of elastic material, it serves likewise as ehnfier for the gun-barrel in the running-out movement of the latter.

Obviously withoutdepartingfrointhe spirit of this invention the brake piston-rod could be connected with the horn on the gun-breech and the bralzecylinder connected to the front end of the cradle. With the parts arranged in this manner the packing L would surround the piston-rod instead of the brake-cylinder.

Having time described the invention, the following is what is claimed as new therein:

1. In a gun, the combination with the herrel, a hollow cradle open at one end, and e 1e cuperator-spring mounted Within the cradle, of means for protecting the interior of the cradle from dust or the like, consisting of a, packing introduced into the space between the relatively moving parts at the open end of the cradle.

2. In a. gun, the combination with the herrel the open-ended hollow cradle and the recoil-brake hevinge reeuperetor-sprihg mounted within the cradle, of e pecking closing said open end at leeet when the barrel is in its l l l l l l l l i firing position, snrreni'iding the part which reciprocatee with the gun-barre e one of the relatively moving pa ing a duet-tight joint by impinging the other.

8. In a gun, the combination rel, the openended hollow or coil-breke having recnpewter-spring. ed Within the cradle, of a packing ere the cradle, surrounding the parts t rocete with the gun-barrel and on during recoil and return movement I. re barrel and 5t plate lit. through ich peck ing is secured in place.

4-. In a gun, the comtinetion with L rel, the hollow cradle open e coil-brake secured to the iii-hm -ol end. ing through the open end of the the horn E projecting from the Ql'iB-' I of the plate K secured in the open end of the cradle and the packing L between the horn and plate, making a, duet-ti therewith, snhetentially as set 5. In a gun, the combination i rel, hollow cradle having recoil brake having a recnpc: mounted Within the cradle, of it 'n the space between said parts which reciprocate therein coil and. return movement ct" packing being formed of elastic affording a buffer for the gun-inane tnrn movemen The foregoing specification D e seldorti, Germany, this 9th day of Jul-in 1902.

In presence of-- if LIEBER, WILLIAIvt Essenwnm. 

